TURBO REFRIGERATOR

Japanese Patent JP2016048163

A

PROBLEM TO BE SOLVED: To provide a turbo refrigerator improved in performance by enhancing freezing performance while suppressing a cost.SOLUTION: A turbo refrigerator includes: a centrifugal compressor 10 which compresses coolant W by rotations of impellers in plural stages having a plurality of blades: a condenser 11 which cools the compressed coolant W; expansion valves 25, 26, and 27 which are connected in series and decompresses the coolant W from the condenser 11 to be a gas/liquid two-phase; an evaporator 15 which evaporates the coolant W from the expansion valves 25, 26, and 27; a plurality of economizers 14 which is disposed between those expansion valves 25, 26, and 27, and separates the coolant W into the gas/liquid two-phase; and an inflow pipe 23 which allows an air phase W1 separated from the coolant W in one economizer 14 to flow into between a front edge and a rear edge of a blade in a main channel between the adjacent blades of one impeller, and allows the air phase W1 separated from the coolant W in another economizer 14 to flow in a step between the impellers.SELECTED DRAWING: Figure 7

KOGA ATSUSHI
UEDA KENJI

JP2016004748A

April 07, 2016

January 13, 2016

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MITSUBISHI HEAVY IND LTD

F25B1/053; F25B1/00; F25B1/10; F25B43/00

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JPS57184471U	1982-11-22
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JP2003083281A	2003-03-19

US20110113804A1	2011-05-19
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WO2014207796A1	2014-12-31

Ryuichiro Mori
Masatake Shiga
Tadashi Takahashi
Tetsuo Yamazaki
Yasushi Matsunuma

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